How to store $ in a PHP variable?
I want to store a $ character in a PHP variable.
$var = "pas$wd";
I get the following error
Notice: Undefined variable: wd 开发者_如何学Goin C:\xxxxx on line x
Help.
You can use single-quoted strings :
$var = 'pas$wd';
This way, variables won't be interpolated.
Else, you can escape the $
sign, with a \
:
$var = "pas\$wd";
And, for the sake of completness, with PHP >= 5.3, you could also use the NOWDOC (single-quoted) syntax :
$var = <<<'STRING'
pas$wd
STRING;
As a reference, see the Strings page of the PHP manual (quoting a couple of sentences) :
Note: [...] variables and escape sequences for special characters will not be expanded when they occur in single quoted strings.
And :
If the string is enclosed in double-quotes (
"
), PHP will interpret more escape sequences for special characters:\$
: dollar sign
Single quotes inhibit expansion:
var = 'pas$wd';
Double quotes enable variable interpolation. So if you are using double quotes, you need to escape the $
else you can use single quote which do not do variable interpolation.
$ var = "pas\$wd";
or
$ var = 'pas$wd';
$var = 'pas$wd';
$var = "pas\$wd";
Use the following code
$var='pass$wd'
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